Global Patent Index - EP 1453419 B1

EP 1453419 B1 2009-02-25 - TIME RESOLVED COMPUTED TOMOGRAPHY ANGIOGRAPHY

Title (en)

TIME RESOLVED COMPUTED TOMOGRAPHY ANGIOGRAPHY

Title (de)

ZEITAUFGELÖSTE COMPUTERTOMOGRAPHIE-ANGIOGRAPHIE

Title (fr)

ANGIOGRAPHIE A RESOLUTION TEMPORELLE PAR TOMOGRAPHIE ASSISTEE PAR ORDINATEUR

Publication

EP 1453419 B1 (EN)

Application

EP 02776430 A

Priority

  • US 0235234 W
  • US 34811001 P
  • US 21945702 A

Abstract (en)

[origin: US2003013953A1] A contrast enhanced dynamic study of a subject is performed with a CT system. A series of undersampled image data sets are acquired during the study with successive data sets acquired at interleaved projection angles. More fully sampled image data sets are formed by transforming the x-ray attenuation projection data to k-space and then sharing peripheral k-space data between undersampled k-space data sets. Artifacts due to undersampling are thus reduced without significantly affecting the time resolution of a series of reconstructed images.

IPC 8 full level (invention and additional information)

A61B 6/00 (2006.01); A61B 6/03 (2006.01); G01R 33/54 (2006.01); G01R 33/563 (2006.01); G06F 19/00 (2011.01); G06T 11/00 (2006.01); G01R 33/28 (2006.01); G01R 33/56 (2006.01); G01R 33/561 (2006.01)

CPC (invention and additional information)

A61B 6/032 (2013.01); A61B 6/469 (2013.01); A61B 6/481 (2013.01); A61B 6/504 (2013.01); G01R 33/4824 (2013.01); G01R 33/5635 (2013.01); G06F 19/321 (2013.01); G06T 11/005 (2013.01); G16H 50/50 (2018.01); G01R 33/281 (2013.01); G01R 33/561 (2013.01); G01R 33/5619 (2013.01); G06T 2211/404 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family

US 2003013953 A1 20030116; US 6983182 B2 20060103; AT 423508 T 20090315; AU 2002342291 A1 20030526; DE 60231327 D1 20090409; EP 1453419 A2 20040908; EP 1453419 B1 20090225; WO 03041583 A2 20030522; WO 03041583 A3 20031002